Hello folks, After lot of reading i decided to start my thread as i do have few questions remaining before being able to finalize the setup. You can see enclosed a schema of my setup, right now only the "video" side is finished. I am now working on the Nodemcu and the LED. I have WS2813 LED, which has 4 wires (redundant signal data) and i have to connect it to the Nodemcu : This is the complicated part : I understand how to connect the +5V and the GND but how it is possible know which PIN of the nodemcu i have to use to connect the BO and DO ? According, to what i have already read, the DO and BO of the WS2813 is data signal and data backup signal, so there can be connected together on the same PIN. Thanks. Ps : If you question regarding the video side, feel free.